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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1776 (Engine Cooling System) >> Repair Instructions >> Cooling Fan Relay Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Installation of the proper relay is critical. If an enhanced relay - equipped with a diode - is installed into a position requiring a standard relay - equipped without a diode - excessive current will damage any components associated with the relay or its associated circuits.
  1. Install the cooling fan relay (3).
    Fig 1: View of Cooling Fan Relay
    GM814979Courtesy of GENERAL MOTORS CORP.
  2. Install the underhood electrical center cover.
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